Alexandra Alex Vause is an inmate at Litchfield Penitentiary and the on-and-off lover of main character Piper Chapman. She is portrayed by Laura Prepon. Alex's character is based on Nora (in reality named Catherine Cleary Wolters) in the memoir, Orange is the New Black: My Year in a Womenâs Prison.
On 1 January 1905, the IRN created the world's first operational submarine fleet around these seven submarines. The first combat patrol sent out by the newly created IRN submarine fleet occurred on 14 February 1905 and was carried out by Delfin and Som, with each patrol normally lasting about 24 hours.
They also invented torpedoes which were propelled by small electric motors, thereby introducing one of the most dangerous weapons in the world. Submarines are also called U-boats, which is short for Unterseeboot, the German word for undersea boat. The first nuclear-powered submarine, the USS Nautilus (SN-571), was launched in 1955.